Surface condenser



P. A. BANCEL I SURFACE CONDENSER May 22, 1928.

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Y i 2 AN 5w N AN Q 00000006 00 oooooooo Mm 0000000 9 0 00000000000 0 O O O l 0000 ooooo 8 o o. oooooo n 0 00000000 h o oooooooo w ooooooodooooooooo n ooooocooooboooooo F oooooobo ooooooooo ooooooooooooooooo ooooooooooooooooo ooooooo ooooooooo ooooooooooooooo oooooooooooooo ooooo ooooooo oobooooooooo ooooooooo oooooooo 1,670,562 7 P. A. BANCEL SURFACE CONDENSER May 22, 1928.

Filed Jan. 1926 2 Sheets-Sheet 2 o o o o o '-o o o o o o o o o o o o o o o. o o o o 0 0 0 0 0 0 o o bao o o o v30 0 o o o o o o o o o o o o o 0 O O INVENTOR Peat A.Bazwel HIS ATT'ogwEv Patented May 22, 1928.

UNHTEQ STATES 1, 70,552 PATENT o -rice.

PAUL A. BANCEL, or NUTLEY, NEW asnsnxnssre-Non TOINGERSOIQL-RAND com- PANY, or JERSEY CITY, NEXT/"JERSEY, A coRPoR TIoiN-or NEW JERSEY.

SURFACE CONDENSER.

Application filed January This invention relates to condensers, but more particularly to a surface condenser having a plurality of cooling units in the formof groups of tubes. The tubes of the several groups are soarranged that the number thereof decreases toward the outlet opening of eachunit.

One object of the invention is to prevent the velocity of the vapor and gases from falling below acertain predetermined ratio during their passage through the condenser. Another object is to insure complete condensation and uniform penetration of the vapor by progressively decreasing the steam flow area and by causing thevapor to contact with an increased cooling area immediately prior to the evacuation of the uncondensable gases;

' Other objects will be in part obvious and in part pointed out hereinafter.

The invention consists of the combinations of elements, features of construction and arrangement'of parts having the general mode of operation substantially as hereinafter described and more particularly pointed out in the appended claims and illustrated in the accompanying drawings, in which Figure l is a transverse sectional View in elevation of a surface condenser taken through Figure 2 on'the line 1'-l'looking in the direction of the arrows,

Figure 2 is a longitudinal View in elevation partly broken away illustratingthe arrangement of the several cooling units, Figure 3 is a transverse view in elevation partly in section illustrating a modification of the invention and takenthrough Figure 4t on the line 33 looking in the directionof the arrows, and

Figure 4 is a side view in elevation and partly in section of the modification illustrated in Figure 3 illustrating the manner in which the condensate and thespraying liquid are removed from the condenser byseparate pumps.

Referring to the drawings and at first more particularly to the preferred modification illustrated in Figures 1 and 2, A indicates a casing having a steam inlet B and a condensate outlet C. Secured tothe opposite ends of the casing A are tube sheets D which in this instance support groups of tubes indicated by E and F which form main and secondary cooling units respectively, and convey water from a water head s, 1926. Serial no; 30,007.

G at one end of the condenser to a discharge head 'H at the opposite end of the casing A. The water head G in this instance has a connectionJ near the upper portion through V which water may be introduced from any suitable source of supply. The head'H has a connection K near the lower portion tion, the tubes Fwhich comprise the secondary cooling unit are 3 arranged 'in'inverted V-shaped formation to extend upwardly .into themain cooling unit. The tubes Fare preferablyof the same cross sectional area as the tubes E and are spaced considerably closer than the'tub es E so thata greater proportion ofycooling area is presentedto the vapor and gasespassing therethrough.

Suitable means are provided for dividing the main and secondary cooling units; To this end a-pair of inclined batlies L and O are arranged longitudinally through the casingA to converge at'a point above the secondary'cooling unit.- At the base of the battles Land O are formed .a plurality of orifices P through "which vapor and gases may pass from themain to the secondary cooling unit and also for the purpose of permitting the escape of condensate from the main cooling unit to the outletfG.

*In order to provi'd'e a passage for the uncondensable gases fromthe condenser,- an outlet opening Q, is formed-at the taper the secondary unit. A pipe'or connectiomR ar ranged to register with saidbutlet opening is adapted to convey such uncondensable gases to a pointoutside of the casing A. The means for evacuating the gases from the condenser are not shown, but may consist of any well-known and suitable means, such as for instance a steam jet, or a vacuum pump. v

In Figures 3 and 4c the casing A is provided with a main condensing unit, similar to that shown in Figures 1 and 2. Similan ly'a pair of converging baffles L and O are arranged within the casing to divide the main condensing unit from the secondary condensing unit R. The admission of steam into the condenser and the removal of the condensate therefrom as well as the admission and passage of cooling water through the condenser are like that described in connection with the preferred modification.

In this instance the secondary cooling element 'R consists-of a pluralityof tubes designated by S, T, and U. The tubes S and U are preferably supported by the baliles L and 0 respectively and have a row of spray nozzlesV arranged in such a manner that the spray therefrom is directed toward the center of the casing A. The tube T is preferably arranged abovethe tubes S and U and centrally with respect thereto, and has in this instance two rows of spray nozzles arranged to direct the spray therefrom towards the baffles L and O. In the side of the water head G is formed a suitable opening W to receive a Water head X and to which thetubes S, T, and U are connected at one end. The opposite ends of the tubes S, T, and U are preferably each closed by a cap Y. I

Although the tubes S, T, and U are shown provided with a separate water head X, it is obvious that they may be so connected that water may be supplied to them directly from the water head G, in which instance the water head X might be eliminated. However, a separate source of water supply inaytpreferably be provided for these tubes.

In order to prevent the intermixing of condensate from the main cooling unit and the spray water in the secondary unit R,

a trough Z is arranged longitudinally through said secondary unit R to receive the spray water from the nozzles V. The trough Z is preferably arranged at sufficient distance above the bottomof the ca ing Ato permit the free passage of condensate therebeneath to the outlet opening C and is of such width that all spray Water issuing from the nozzles V will be caught thereby and thusbe prevented from mixing with the condensate. The spray water thus caught by the trough Z may be quickly and conveniently removed therefrom bymeans of a. pump 1) connected thereto as by means of a ing Q and the connection R by means of a.

steam jet f or, if desired, by a vacuum pump. By means of the construction shown in this invention, the inactive zone usually present in condensers of this type has been eliminated and it has been found that'the withdrawal of large masses of uncon densed vapor from the condenser along with the uncondensable gases has also been eliminated. A further advantageous feature of this invention is that uniform penetration throughout the entire area of the several cooling units may be obtained.

I claim:

1. A surface condenser comprising a casing having aninlet at the top for steam and a discharge openin at the bottom for condensate, coolingtiibes arranged Within the casing transverse to the direction of steam flow, a cooling and devaporizing section within the casing'for air and'uncondensable gases to be withdrawn from the casing, said section being provided with a pair of side Walls converging upwardly and a plurality of spray devices within said walls to spray cooling water across the path of vapors and uncondensable gases in said devaporizing section.

2; A surface condenser comprising a casing having an inlet at the top for steam and a'discharge opening at the bottom for condensate, cooling tubes arranged within the casing transverse to the direction of steam flow, a cooling and devaporizing section within the casing for air and unconden'sable gases to be withdrawn from the casing, said section being provided with a pair of side walls converging upwardly and a plurality of spray devices within said walls to spray cooling water across the path of vapors and uncondensable gases in said devaporizing section, and means to collect water sprayed by said devices separately from the condensate.

In testimony whereof I have signed this specification.

PAUL A. BANCEL. 

